You are the administrator of a single Active Directory domain named contoso.com. The network contains a
member server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2).
A user named User1 reports that he is unable to log on from Server1. User1 is a member of the Domain Users
global group.
You verify the security log on Server1 and discover the following log entry:
Event Type:Failure Audit
Event Source: Security
Event Category: Logon/Logoff
Event ID:529
Date: 8/1/2007
Time: 12:05:51 PM
User: NT AUTHORITYSYSTEM
Computer: SERVER1
Description:
Logon Failure:
Reason: Unknown user name or bad password
User Name: User1
Domain: SERVER1
Logon Type: 10
Logon Process: User32
Authentication Package: ?Negotiate
Workstation Name:???SERVER1
Caller User Name: SERVER1$
Caller Domain:CONTOSO
Caller Logon ID:(0x0,0x3E7)
Caller Process ID: 3528
Transited Services:-
Source Network Address: 192.168.1.19
Source Port:?55208
You need to ensure that User1 can successfully log on to Server1.
What should you do?

A.
Reset User1’s password.

B.
Reset Server1’s computer account.

C.
Instruct the user to log on as user1@contoso.com.

D.
Synchronize Server1’s clock to a domain controller.